Husqvarna 420 EL, Operator'S Manual

Page: 89 / 464

3. Put the guide bar on top of the bar bolt. Steer the
guide bar to its most rear position. Lift the saw chain
above the drive sprocket and engage it in the groove
on the guide bar. Start on the top edge of the guide
bar.
4. Make sure that the edges of the cutting links are
turned forward on the top edge of the guide bar. (Fig.
37)
5. Make sure that the edges of the cutting links face
forward on the top edge of the guide bar.
6. Assemble the drive sprocket cover and steer the
chain adjuster pin to the hole in the guide bar.
7. Make sure that the drive links of the saw chain fit
correctly on the drive sprocket.
8. Make sure that the saw chain is correctly engaged in
the groove in the guide bar.
9. Tighten the saw chain. See
To adjust the tension of
the saw chain (420 EL) on page 96 for instructions.
Operation
Introduction
WARNING:
Read and understand the
safety chapter before you use the product.
To do a function check before you use
the product
1. Do a check of the chain brake (A) to make sure that
it operates correctly and that it is not damaged.
2. Do a check of the rear right hand guard (B) to make
sure that it is not damaged.
3. Do a check of the power trigger and the power
trigger lockout (C) to make sure that they operate
correctly and that they are not damaged.
4. Do a check of the keypad (D) to make sure that it
operates correctly.
5. Make sure that there is no oil on the handles (E).
6. Do a check to make sure that all parts are correctly
attached and not damaged or missing.
7. Do a check of the chain catcher (F) to make sure
that it is attached correctly.
8. Do a check of the chain tension (G).
9. Make sure that the saw chain stops when you
release the power trigger. (Fig. 38)
To use the correct chain oil
WARNING:
Do not use waste oil,
which can cause injury to you and the
environment. Waste oil also causes damage
to the oil pump, the guide bar and the saw
chain.
WARNING:
The saw chain can break
if the lubrication of the cutting equipment is
not sufficient. Risk of serious injury or death
to the operator.
WARNING:
Use the correct chain oil
for this function to operate correctly. Speak
to your servicing dealer when you select
your chain oil.
• Use Husqvarna chain oil for maximum saw chain life
and to prevent negative effects on the environment.
If Husqvarna chain oil is not available, we
recommend you to use a standard chain oil.
• Use a chain oil with good adherence to the saw
chain.
• Use a chain oil with correct viscosity range that
agrees with the air temperature.
CAUTION:
In temperatures below
0°C/32°F some chain oils become too
thick, which can cause damage to the oil
pump components.
• Use the recommended cutting equipment. Refer to
Accessories on page 98
.
• Remove the cap to the chain oil tank.
• Fill the chain oil tank with chain oil.
• Attach the cap carefully.
(Fig. 39)
Note:
To see where the chain oil tank is on you
product, refer to Product overview on page 84 .
Kickback information
WARNING:
A kickback can cause
serious injury or death to the operator or
others. To decrease the risk you must know
the causes of kickback and how to prevent
them.
A kickback occurs when the kickback zone of the guide
bar touches an object. A kickback can occur suddenly
and with large force, which throws the product in the
direction of the operator.
(Fig. 20)
1782 - 003 - 04.04.2022 89